What resolution do you design at?

[- Max -]

I Don't know for GIMP, but in PS, it's in Images/Image size.

Currently knocking up various battle maps for sale on DriveThruRPG and I was curious as to what resolution other people design their maps at. As a graduate that did Graphic Design I always used to design at 300dpi, the pdf guidelines on DriveThru say 150dpi and I know from talks with Torstan that he designs some of his maps on DriveThru at 100dpi simply because designing them at a larger scale would take a lot longer (and honestly with the size and detail of some of my poster maps I think my own computer would set on fire). I've been designing at 100dpi but I'm starting to wonder whether this is going to lead to a terrible print (they're designed at 1" square size so they don't need to be upscaled).

300 DPI is the standard resolution for print, though for poster sizes, 150 DPI looks a fine resolution. I would say that's 200 DPI or higher is ok for non poster maps Going under this value would give some low/bad quality prints.